Author	[Modern View]
Goose 12-12-2012 10:35:02 70.197.201.184 Report to Moderator	Probably black. Black would help dispel heat. [Reply]   [No Email]
Gambles 12-12-2012 15:34:36 24.246.215.127 Report to Moderator	Re: Radiator Painting in reply to Goose, 12-12-2012 10:35:02   ^This. I'm going to get some arguments from somebody about my post, but it's true. Despite the fact that a dark item sitting in the sun absorbs the most heat, the color black actually DISPELS heat better than any other color. That's why radiators should be painted black. [Reply]  [No Email]
Rustyj14 12-12-2012 11:30:19 74.109.237.80 Report to Moderator	Re: Radiator Painting in reply to Goose, 12-12-2012 10:35:02   I was informed that radiators, in car and truck use, were painted black with a thin coat of paint! The rad shop guy told me it was a special mixture they used, not the type our shop would use to paint a black car, for instance! Their type of black paint dispelled heat better, because it was thinner than regular store-bought black paint! Especially on the fins, but also on the tanks. RJ [Reply]  [No Email]
big fred 12-12-2012 16:57:39 97.113.27.115 Report to Moderator	Re: Radiator Painting in reply to Rustyj14, 12-12-2012 11:30:19   I can believe that. I won't believe that you'll get a measurable difference because of the color. A vehicle's radiator doesn't really dissipate heat due to radiation (for the most part), but instead by convection. And aerospace studies have shown that the difference in emissivity between black and most other colors is only on the order of 10-15%, where flat black is about .95, gloss black about .90 and just about any other color except white is between .75 and .85. [Reply]  [No Email]